//
//  UIBarButtonItem+Extensions.swift
//  新浪微博
//
//  Created by Jack.Lin on 16/6/29.
//  Copyright © 2016年 Jack.Lin. All rights reserved.
//

import UIKit


extension UIBarButtonItem {

    // 这里便利构造函数需要参数
    convenience init(title: String, fontSize: CGFloat = 16, target: AnyObject?, action: Selector, isBack: Bool = false) {
        
        let btn: UIButton = UIButton.cz_textButton(title, fontSize: fontSize, normalColor: UIColor.darkGray(), highlightedColor: UIColor.orange())
        
        if isBack {
            let imageName = "navigationbar_back_withtext"
        
            btn.setImage(UIImage(named:  imageName), for: UIControlState(rawValue: 0))
            btn.setImage(UIImage(named:  imageName + "_highlighted"), for: .highlighted)
            
            btn.sizeToFit()
            
        }
        btn.addTarget(target, action: action, for: .touchUpInside)
        
        // self.init 实例化 UIBarButtonItem
        self.init(customView: btn)
    }
}
